TY - JOUR AU - E. I. Bunina AU - A. V. Mikhalev TI - Elementary properties of categories of acts over monoids JO - Algebra i logika PY - 2006 SP - 687 EP - 709 VL - 45 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2006_45_6_a2/ LA - ru ID - AL_2006_45_6_a2 ER -